KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > de > webman > acl > eventhandler > ACUserDeleteEventHandler


1 package de.webman.acl.eventhandler;
2
3 import java.util.*;
4
5 import com.teamkonzept.web.*;
6 import com.teamkonzept.lib.*;
7 import com.teamkonzept.webman.*;
8 import com.teamkonzept.webman.mainint.*;
9 import com.teamkonzept.webman.mainint.events.*;
10 import de.webman.acl.*;
11
12 /**
13 Deletes a user definition from the database
14  * @author $Author: alex $
15  * @version $Revision: 1.3 $
16  */
17 public class ACUserDeleteEventHandler extends DefaultEventHandler implements ParameterTypes, DatabaseDefaults, FrameConstants
18 {
19 private ACUserDeleteEventHandler() {}
20
21     private static ACUserDeleteEventHandler instance = new ACUserDeleteEventHandler();
22
23     public static ACUserDeleteEventHandler getInstance()
24     {
25         return instance;
26     }
27
28     public void handleEvent(TKEvent evt) throws TKException
29     {
30         try {
31             WebManEvent.checkEvent(evt.getRemoteUser(), evt.getName(), ContextConstants.ACCESS_CONTROL);
32             String JavaDoc userId = evt.getParameter(PARAMETER, "USER_ID");
33             if (userId != null) {
34                 User theUser = UserFactory.getInstance().getUser(new Integer JavaDoc(userId));
35                 if (theUser != null) {
36                     UserFactory.getInstance().deleteUser(theUser);
37                 }
38             }
39             TKHTMLTemplate t = evt.getPrepHTMLTemplate( "f_ac_user.tmpl" );
40             HTMLUtils.fillFrameSet( t, HTMLUtils.LEFT_FRAME_WIDTH, "AC_USER_LIST", "EMPTY" );
41             WebManEvent.fillEventsIntoTemplate(evt.getRemoteUser(), t, ACCESS_CONTROL);
42             evt.finishTemplate( t );
43         } catch (Throwable JavaDoc e) {
44             throw WebmanExceptionHandler.getException(e);
45         }
46     }
47
48     public boolean isHandler(TKEvent evt)
49     {
50         return evt.getName().equalsIgnoreCase( "AC_USER_DELETE" );
51     }
52
53 }
54
Popular Tags